Lines with zero coverage (67/2603):

===File sql/handler.cc:
   7267 : +    DBUG_RETURN(HA_ERR_OUT_OF_MEM);

===File sql/log.cc:
   2078 : +    DBUG_RETURN(0);
   2347 : +    DBUG_RETURN(error);
   3853 : +    return error;
   3880 : +    return -1;
   3883 : +    return -1;
   3890 : +      sql_print_error("Failed to enable encryption of binary logs");
   3891 : +      return -1;
   3897 : +        return -1;
   3902 : +        return -1;
   3906 : +        return -1;
   6042 : +    return NULL;
   6440 : +    delete cache;
   6441 : +    return NULL;
   6645 : +    DBUG_RETURN(NULL);
   6669 : +      DBUG_RETURN(NULL);
   7786 : +      my_error(ER_ERROR_ON_WRITE, MYF(ME_ERROR_LOG),
   7787 : +               binlog->get_name(), errno);
   7788 : +      binlog_online_alter_cleanup(thd->online_alter_cache_list,
   7790 : +      DBUG_RETURN(error);
   7818 : +    savepoint_alloc_size= sizeof (SAVEPOINT) + sizeof(my_off_t);
   7823 : +      continue;
   7827 : +      DBUG_RETURN(1);
   7845 : +      continue;
   7863 : +    DBUG_RETURN(ER_ERROR_ON_WRITE);
   7872 : +      DBUG_RETURN(res);

===File sql/log.h:
    407 : +  char* get_name() { return name; }
    424 : +  virtual IO_CACHE *get_log_file() { return &log_file; }
    460 : +      return res;
    465 : +      return false;

===File sql/log_event.cc:
   3107 : +      DBUG_ASSERT(m_cols_ai.bitmap == NULL);

===File sql/log_event_server.cc:
   5897 : +  new(table_list) RPL_TABLE_LIST(&tmp_db_name, &tmp_tbl_name, TL_WRITE,
   7064 : +    result= cmp_record(table, record[1]);
   7103 : +        goto record_compare_differ;
   7132 : +      return;
   7142 : +      return false;
   7257 : +        DBUG_RETURN(err);
   7317 : +        DBUG_RETURN(HA_ERR_OUT_OF_MEM);

===File sql/rpl_record.cc:
    239 : +      return false;
    337 : +    *current_row_end= st.pack_ptr;
    380 : +        rgi->rli->report(ERROR_LEVEL, ER_SLAVE_CORRUPT_EVENT,
    381 : +                    rgi->gtid_info(),
    383 : +                    f->field_name.str, table->s->db.str,
    384 : +                    table->s->table_name.str);
    385 : +        DBUG_RETURN(HA_ERR_CORRUPT_EVENT);
    470 : +      DBUG_RETURN(error);

===File sql/sql_class.h:
   1240 : +      return null_clex_str;
   4161 : +  inline void* trans_alloc(size_t size) const

===File sql/sql_table.cc:
  10278 : +    if (thd->mdl_context.upgrade_shared_lock(mdl_ticket, MDL_EXCLUSIVE,
  11176 : +      mysql_bin_log.write_table_map(thd, new_table, 1);
  11713 : +        my_error(ER_IO_READ_ERROR,MYF(0), (ulong)EIO, strerror(EIO), "");
  11940 : +        goto err;
  11946 : +        from->s->online_alter_binlog->release();
  11947 : +        from->s->online_alter_binlog= NULL;
  11948 : +        goto err;
  11962 : +        thd->send_kill_message();
  11963 : +        error= 1;
  11964 : +        break;
  12046 : +            my_error(ER_FK_CANNOT_DELETE_PARENT, MYF(0),
  12049 : +            break;
  12138 : +    rli.relay_log.description_event_for_exec=
  12158 : +        error= 1;

===File sql/transaction.cc:
    593 : +        DBUG_RETURN(NULL);
    600 : +    my_error(ER_OUT_OF_RESOURCES, MYF(0));
    601 : +    DBUG_RETURN(NULL);
    646 : +    DBUG_RETURN(error);

===File storage/maria/ha_s3.cc:
    241 : +  int_table_flags|= HA_NO_ONLINE_ALTER;